Grease-gun.



CHARLES R. MILLER., OF COLLlNSKVILLE, TEXAS.

GREASE-GUN. i

Specification of Iletters `I Patent.

' Patented Nov. 26, isis.

Application filed August 27, 1918. Serial No. 251,681.

' the grease can be readily applied wherever required. One object is toprovide a telescopic filler by which the grease may be 'taken into thegrease gun without getting the grease on the hands, and which makes thelling easily and quickly done.

Other objects and advantages willI be fully explained in the followingdescription and the invention will be more particularly pointed out inthe claims.

Reference is had to the accompanying drawings which form a part of thisapplication.

Figure 1 is a side elevation of the grease gun. Fig. 2 is a sideelevation, this view showing the gun turned one quarter around. Fig. 3is a broken sectional view, showing details of construction and showingthe parts enlarged. Fig. l illustrates the position of the filler in theact oi" taking in a charge of grease, parts of the operating mechanismbeing omitted. Fig. 5 is an end view of the telescopic filler.

Similar characters of reference are used to indicate the same partsthroughout the several views.

The gun includes a barrel 1 which is closed at the intake end by a cap 2which is hingedly connected thereto, the hinge members including a shank3 and jaw members 1 secured to the outside of the barrel and pivot bolt.A spring clamp 5 is provided r'or holding the cap 2 open during afilling operation. When the cap is pushed open to the position shown bydotted outline in Fig. 1 the shank 3 will be caught by the springclamping members 5. The other end of the barrel 1 is closed by a plug 6which serves as a guide for the plunger rod 7 and for other purposeshereinafter explained. A,

telescopic ller tube 8 is mounted in the barrel 1 and is movable thereinby the plun- -ger 9 `and its rod 7 which is provided with lugs 10 forthis purpose.

The cap 2 has internal threads and the filler or intake end of the tube8 is provided with threads for engaging the cap for locking the capclosed. rlhe cap 2 is provided with a packing gasket 11 against whichthe filler tube presses. The filler 8 is provided with a perforated plug12 by which the filler tube 8 is actuated. The plunger 9 operates withinthetube 8 for discharging grease as hereinafter explained. The plug 12has a slot 13 which is enlarged in the central part for the operationvof the plunger rod 7. The slot `13 is for the passage of the lugs 10when the plunger 9 is to be released from the tube 8. When the lugs 10are at right angles to the slot 18, the tube S' can be moved by theplunger rod 7 and by the plunger 9. The

plug 12 has downwardly projecting lugs 14 rigid therewith. For fillingthe vtube 8 with grease, the rod 7 will be turned and the lugs 10 willengage the lugs 14 and thus unscrew the tube 8 from the cap 2.l The cap2 can then be swung to the dotted outline position or' Fig. 1 andclamped in this position. The

rod 7 by means of the lugs 10 is used to pushv the tube S to theposition shown in Fig. il for filling purpose. The tube 8 is providedwith an opening 15 to permit escape of air.

during a lling operation. When the tube 8 goes back into the barrel 1,the perforation 15 will be closed by the wall of the barrel 1. When thetube 8 has been illed, it is drawn back within the barrel 1 by means ofthe plunger 9. Thus the filler tube S is actuated by the plunger rod 7with the plunger 9 and the lugs 10, and the tube S is released from thecap 2 by means of the plunger rod 7 and the lugs 10 and the lugs 14 onthe plug 12.

For discharging the grease, the plunger 9 can be released from the tube8 by turning the plunger rod 7 until the lugs 10 will pass through theslot 13 and then pushing the rod 7 inwardly. The rod 7 can then beactuated manually or by ratchet mechanism.

Wotches 16 are cut in the side of the rod 7.

A handle 17 is pivotally mounted on a bracket 19 which is rigid with thebarrel 1 and provided with a swinging gravity dog 18 which is adapted toengage the notches 16, the notches 16 constituting ratchet teeth,

or a rack. The grease is forced out of a dis- When the tube S is to befilled with grease, it is pushed out of the barrel 1, as abovedescribed, and then immersed in the grease for taking in a charge. It isthen drawn back Within the barrel by means of the plunger 9, as abovedescribed, and then screwed into the cap 2 lor locking the cap and tubeS together and for locking the cap 2 to the barrel l. 1Various changesin the sizes, proportions, and construction otl the several parts mav bemade Without departing from in v invention.

What. .i claim, is,-

l. A grease gun comprising a barrel` a telesciniic filling anddispensing member mounted in said barrel, and a plunger detachablvconnected to said filling member for movii'ig said telescopic fillingmember in and out of said barrel and for discharging grease from saidfilling member.

rgrease gun comprising a barrel, a telescopi(l hlling and dispensingmember mounted in said barrel, a cap hingedly connected to said barrel,and a plunger detachablv connected to said filling member for operatingthe same and provided with means for attaching and detaching saidfilling member to and from said cap.

3. A grease gun comprising a. barrel, a telescopic filling anddispensing member mounted in said barrel provided With a perforated plugand lugs depending from the plug7 a cap hingedly connected to saidbarrel, and a plunger detachably connected to said filling member foractuating the same and provided With lugs for engaging the lugs of saidplug` for attaching and detaching said filling member to and from saidcap.

A. A grease gun comprising a barrel, a filling and dispensing membermounted in said barrel, a cap hingedly connected (o said barrel, a,barrel plug rigid With said barrel having an interior cavity and aperforation therethrough, a perforated plug rigid with said fillingmember provided With depending lugs, and a plunger detachablv connectedto said filling member and provided With horizontal lugs adapted toengage said depending lugs for attaching and detaching said fillingmember to and 'from said cap.

A grease gun comprising a barreh a cap hingedly connected to said barreland means on said barrel 'for holding said cap in open position, atelescopic filling member mounted in said barrel, and a plungerdetachablv connected to said filling member for moving the same in andout of said barrel and provided With means for attaching anddetachingsaid filling member to and from said cap.

6. A grease gun provided with a cap hingedly connect-ed thereto andprovided with a discharge nozzle, a telescopic filling member mounted insaid barrel. a plunger detachabl)Y connected to said. filling member formoving the same in and out of said barrel and provided with means fordetaching and attaching said filling member from and to said cap, andmeans for actuating said plunger to discharge grease through said nozzlewhen detached from said filling member.

7. A grease gun comprising a barrel, a telescopic filling tube mountedin said barrel and provided with a perforation for escape of air, and aplunger detachably connected to said filling tube for moving the same'in and out of said barrel.

In testimony whereof, I set my hand, this 23rd day of August, 1918.

CHARLES R. MILLER.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

